Via Wired, neuroscientist Christof Koch argues that there are consciousnesses that exist outside of biological entities:
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Consciousness arises within any sufficiently complex, information-processing system. All animals, from humans on down to earthworms, are conscious; even the internet could be.
My consciousness is an undeniable fact. I might be confused about the state of my consciousness, but I’m not confused about having it. Then, looking at the biology, all animals have complex physiology. There’s nothing exceptional about human brains. That consciousness extends to all these creatures, that it’s an imminent property of highly organized pieces of matter, such as brains.
It’s not that any physical system has consciousness. A black hole, a heap of sand, a bunch of isolated neurons in a dish, they’re not integrated. They have no consciousness. But complex systems do. And how much consciousness they have depends on how many connections they have and how they’re wired up.